The way I heard the story told, this phrase was coined (or at least first applied to college students) by the women of Georgia Tech. Georgia Tech, "where the girls aren't", is notorious for its high male to female ratio. In that way, girls who attend Tech are (supposedly) overrun with admirers, so "the odds are good". However, many of these admirers have never before had a conversation with a woman, so "the goods are odd".
Catchy, isn't it?
This usage has since spread to many other universities with similar populations. I've heard it at Carnegie Mellon, Caltech, and MIT, to name a few.
Keep in mind, I'm not necessarily agreeing. I happen to think that geeks make great boyfriends.